Tommaso Raimondi
Semiconductor strain engineering in a driven optomechanical oscillator.
Rel. Carlo Ricciardi, Giancarlo Cicero, Carlo Sirtori. Politecnico di Torino, Corso di laurea magistrale in Nanotechnologies For Icts (Nanotecnologie Per Le Ict), 2023
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Abstract
The main goal of the project is to give the proof of concept of the use of optomechanical oscillators to induce appreciable amount of strain in semiconductors. The possibility to engineer the strain in semiconductors has the purpose of changing their optical properties for future applications, such as tuning lasers emissions via the modification of the bandstructure. The key concept of this work relies on the connection between classical and quantum phenomena, indeed the strain in the oscillator is controlled through the application of an external potential which has the effect of making the sample oscillate according to the laws of classical mechanics.
The result is the ability to tune through an external input the optical properties of the semiconductor, such as the transitions of the photons inside the material and the refractive index
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